What are the causes of action in a pro se petitioner's amended complaint alleging that the prison's policy of restricting visits to 3 one-half hour visits per week violates his constitutional rights?

Byers next contends that the prison's policy of restricting visits to three one-half hour visits per week violates his constitutional rights. Although Byers initially raised this issue in his original complaint, he did not raise it in his amended complaint, nor did the district court consider it. Even in cases involving pro se petitioners, the rule is that "[a]ll causes of action alleged in an amended complaint which are not alleged in an amended complaint are waived." King v. Atiyeh, 814 F.2d 565, 567 (9th Cir.1987). Therefore, Byers has waived his claim regarding the constitutionality of the prison's visitation policy. See id.